A free program for Android, by Patrick König.

Are you ready for a new and unique FPS experience? You’ll find it in this one-of-a-kind FPS game that is full of intense action, intense horror, intense challenge, and intense fun. 

You will be in the middle of a maze, which will keep you on your toes, as the ghosts and other terrifying creatures will try to get you. You have to use all of your skills and abilities to stay alive, and you have to keep an eye on every corner. You can only move in one direction, but you can use the other direction to look for coins and collect them.